Mastabase: a research tool for the study of the secular or 'daily life' scenes and their accompanying texts in the elite tombs of the Memphite area in the Old Kingdom The Leiden Mastaba Project was initiated in 1998 to develop a coherent database of iconographic programmes in Old Kingdom elite tombs from the Memphite area (c. 2600-2150 BCE). It was published as a CD-ROM in 2008 by Peeters Publishers in Leuven. The project was directed by dr. René van Walsem at Leiden University, and partly funded by NWO and LUF/Gratama. Hans van den Berg and drs. Marije Vugts played a vital role in its development. The ISO was uploaded by Nicky van de Beek. Project page: https://digitalegyptology.org/mastabase/ --- The Leiden Mastaba Project (LMP) concerns an integral and analytic study of the secular or 'daily life' scenes and their accompanying texts in the elite tombs of the Memphite area in the Old Kingdom (c. 2600-2150 B.C.). The project has the aim to get insight in the developments of number, size, internal organization and shape of the various (sub)themes, their location in the tomb, their wall position (upper/middle/lower level), and their orientation (north/east/south/west) on the walls. This reflects the dynamics of Old Kingdom funerary culture in general aspects (collective) and in specific cases (individual). Simultaneously it reveals possible local variations, mainly among the large necropoleis of Saqqara and Giza. The data are digitized in a database called MastaBase, published on this cd-rom. Thanks to the standardisation of the material offered in the MastaBase, with this cd-rom it is now possible to gain quick oversights into various different aspects of these tombs and their decoration via extensive selection procedures.